212333020 has 24 divisors (see below), whose sum is σ = 446191200. Its totient is φ = 84877632.

The previous prime is 212332997. The next prime is 212333039. The reversal of 212333020 is 20333212.

It is a super-2 number, since 2×212333020² = 90170622764640800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212332985 and 212333003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43041 + ... + 47719.

It is an arithmetic number, because the mean of its divisors is an integer number (18591300).

Almost surely, 2^212333020 is an apocalyptic number.

212333020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212333020 is an abundant number, since it is smaller than the sum of its proper divisors (233858180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212333020 is a wasteful number, since it uses less digits than its factorization.

212333020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6957 (or 6955 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 212333020 is about 14571.6512447972. The cubic root of 212333020 is about 596.5852508299.

Adding to 212333020 its reverse (20333212), we get a palindrome (232666232).

The spelling of 212333020 in words is "two hundred twelve million, three hundred thirty-three thousand, twenty".